Sampler.



Patented May I4, |90I.

G. A. UVERSTRUM.

SAMPLER.

(Application filed Dec, 8, 1900.)

3 Sheets-Sheet l.

{No Model.)

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No. 6M,095. Patented May I4, |90l. f

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G. A. UVERSTROM.

SAMPLER.

(Application filed Dec. 8, 1900.)

No model.)

3 Sheets-Sheet 3.

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Ntra Sterns .errar OFFICE.

GUSTAVE A. OVERSTROM, OF ANACONDA, MONTANA.

SAMPLER.

SPECIFICATION forming part 0f Letters Patent No. 674,095, dated May 14, 1901. Application filed December 8, 1900. Serial No. 39,221. (No model.)

To all whom it may concern:

Be it known that I, GUSTAVE A. OVER- STROM, a citizen of the United States, residing at Anaconda, in the county of Deel-lodge and State of Montana, have invented a new and useful Improvement in Samplers,of which the following is a specification.

My invention relates particularly to samplers for use in obtaining sam ples from coarse ores, though certain features of the invention are valuable in connection with samplers for other purposes.

My object is to provide a sampler of generally-improved construction which shall be of very simple structure and which shall be very durable and efiicieut in operation.

Myinventionis illustrated in its preferred form in the accompanying drawings, in which- Figure lis a vertical section taken as indicated at line l of Fig. 2; Fig. 2, a vertical section parallel tothe main shaft of the machine and taken as indicated at line 2 of Fig. l; Fig. 3, an enlarged broken section taken as indicated at line 3 of Fig. l; Figs. 4 and 5, details of a modification of the feed-chute, and Fig. G a detail of another modification thereof.

The operative parts may be supported on any suitable frame. In the drawings there are shown parallel timbers A A', extending parallel to the main shaft of the machine, and cross-timbers A2 A2, forming a rectangle With the iirstmentioned timbers. Between the members A2 and A3 is supported a spout B, communicating with main and sample branch spouts B B2. Firmly secured to the timber A2 is a metallic frame member C, provided with bearings a, ct, and 0,2. The bearing a receives the main shaft D, which is provided with an eccentric h and a cam-wheel b', having a cam of the outline indicated in dotted lines at b2 b2 b4 b5. At the bearing ct is fixed a stud c, on which is journaled a ratchet-wheel c', which is engaged near its periphery, Fig. 3, by the free end of a spring c2, iixed to the free end of the stud c. At its opposite side the ratchet-Wheel is provided near its periphery with an annular channel c3, which receives the heads of bolts c4, upon which are journaled latch-engaging rollers c5. The eccentric l) of the main shaft is provided with a pawl or push-bar d, which engages the teeth of the ratchet-wheel c. A gravity-held pawl f, pivoted at f', serves to prevent retraction of the ratchet-wheel. At the bearing a2 is journaled a detlector rock-shaft g, which, as shown in Fig. l, extends through the base of the junction of the spout-s B B2. To this shaft \is xed a cam-engaging rock-arm 7L, which contacts with the cam-wheel b and is held in correct relationship therewith bysuitable lianges thereon and a vibratory deector h', which serves to direct the total stream from the chute B to the main branch discharge-spout B2 or to the sample branch lspout B', as desired. The arm h is provided With a latch engaging arm or extension h2, with which connects a spring h2, secured to a stationary part. Alatch 7e, pivoted at c,is provided with a lug k2, which engages a slightlyinclined surfaceat the end of the arm t2and serves to hold the cam-engaging arm h normally out of engagement with the cam. A spring 7a2 of sufficient strength to force the latch 7c inwardly and raise the arm h from engagement with the cam is fixed to a stationary part and bears against the rear edge of the latch, as shown. A suitable casing E is provided for housing the operative parts. Fixed studs Z and 'm serve to confine the movements of the latch lo and the arm 71,.

The upper portions of the branch spouts B and B2 are curved, as shown in Fig. 1, to permit vibration of the deector h. The sampler may receive its supply from a Crusher or from any conveying-spout. By preference the spout B is located mainly over the branch discharge spout B2, and the delector h', viewed as `indicated in Fig. l, remains for the most of the time at the left of the spout B. The arm h remains for the most of the time out of contact with its cam. At each revolution of the main shaft the ratchet-Wheel c is advanced one tooth. When a latch-engaging roller c5 comes in contact with the latch k, the latter is disengaged from the adjacent end of the arm h2 and the arm h is 4allowed to drop onto the cam. The revolution of the cam-Wheel is so timed that when a drop occurs the arm 7L first engages a high portion of the cam, and immediately thereafter a. low' portion of the cam passes beneath the arm and allows said arm, assisted by the spring IOO h3, to move the rock-shaft g, thereby throwing the deflector h to the right-hand side of the chute B, thereby dellecting the entire stream of falling material for a moment into the sample-spout BC The high portion of /the rotating cam quickly engages the arm h again and raises the same sufficiently to permit the shoulder 7a2 of the latch k to engage the extreme end of the inclined surface at the extremity of the arm h2, after which the spring 7e3 is enabled to force the lug k2 completely over said inclined surface/thereby raising the arm h out of contact with the cam. Thus unnecessary Wear upon the cam is avoided.

From the foregoing description it will be understood that power is applied at the shaft D, and said shaft rotates many times during the interval occurring between the intermittent movements of the rock-arm la', and that the rock-arm h remains depressed only throughout a portion of the revolution of the shaft D. As the deflector depends for its movement upon the movement of said rock-arm, it follows that said deiiector remains for the most time in position to direct material to the main branch spout, as stated. It will be readily understood that the length of the periods between the intermittent movements of the arm h may be regulated by regulating the number 3o of studs or cam-rollers for engaging the latch k. By making the latch-engaging rollers or studs adjustable their number may be increased or diminished at will and the requisite spacing effected.

In Figs. Lt and 5 is illustrated a modication of the chutes through which the material passes. In these figures, B3 represents the main feed-chute, and B4 Bthe branch chutes. In this construction the del-lector h is pro- 49 vided at its Vertical ends with sector-like Harige-receiving grooves.

anges 1", while the upper portion of the branch chutes B4 B5 (here detached from the chute B3) is made circular and provided with lateral internal curved flanges r', formed with Fig. 5 illustrates the manner in which the fianges r work within the grooves aorded by the flanges r'. The chute B3 is of less width than the branch chutes, and from Fig. 5 it will be readily un- 5o derstood that it will be impossible for material to become wedged between the edges of the deiiector and the walls between which the deiiector works.

In Fig. 6 the chutes B3 B4 B5 are practically the same as in Fig. 4;' but instead of a deflector of the form of the deflector h' a spout s is provided,the same being connected with the defiector-shaft. It will be understood that the chutes will be correspondingly lowered 6o inthis construction to bring the upper portion of the spout S to the level of the deflector-shaft. The full lines show the position of the swinging spout when delivering to one branch chute and the dotted lines its position when delivering to the other branch chute.

I do not claim, broadly, the use of a pivoted spout for distributing the material to the branch chutes; but it is to be understood that the pivoted spout acts as a deflector and may be employed in connection with the other improvements described withoutl departure from my invention. Where the spout s is employed7 the shaft g is of course suitably divided and secured to the spout to su pport the same without passing through it.

A machine of the construction described is of particular value in taking samples from coarse ore as it comes from a crusher, and in many cases the sample ore thus obtained is passed through another crusher to be reduced in size, after which samples are taken for analysis.

Changes in the details of construction within the spirit of my invention may be made. Hence no limitation is intended by the foregoing detailed description except as shall appear from the appended claims.

What I claim as new, and desire to secure by Letters Patent, is-

l. In a sampler, the combination of a main shaft, a cam thereon, a rock-shaft, a rock-arm movable with said rock-shaft and actuated by said cam,a deflector movable with said rockshaft, a chute above said deflector, main and sample chutes beneath said first-named chute and divided by said deiiector, a suitably-journaled ratchet-wheel, a pawl actuated by said main shaft and engaging said ratchet-wheel,

a latch-engaging arm movable with said rockshaft, a latch engaged therewith, and means carried by said ratchet-wheel for disengaging said latch at intervals to permit movement of said rock-shaft, substantially as described.

2. In a sampler, the combination of a chute, main and sample branch chutes beneath the same, a deflector for distributing material to said branch chutes, a rock-shaft carrying said deflector, a rock-arm movable with said rockshaft, a main shaft and cam thereon actuating said rock-arm, a latch for holding said rock-arm during the period between its intermittent movements, a revolving latch-operating device, and means for transmitting motion from the main shaft to said revolving member, whereby the latter is caused to move said latch at intervals and disengage said rock-arm, substantially as and for the purpose set forth.

3. In a sampler, the combination of a chute, main and sample branch chutes leading therefrom, a deflector y separating said branch chutes, a rock-shaft carrying said deflector, a rock-arm fixed to said rock-shaft, a main shaft provided with a cam for actuating said rock-arm and provided also with an eccentric,

a pawl carried by said eccentric, a ratchet IOO IIO

eating therewith, a deflector separating said branch chutes and normally located to direct the material to the main branch chute, a rockarm xed to said shaft, a main shaft provided with a cam for actuating said rock-arm,a latch serving to hold said rock-arm normally elevated, a rotating member provided With means for intermittently disengaging said latch to permit movement of the rock-arm, and connecting means between said main shaft and said rotating member for imparting movement to the latter, substantially as and for the purpose set forth.

5. In a device of the character described, the combination with suitable spouts, of a delector, a shaft carrying said deflector, a rockarm fixed to said shaft, a main shaft provided with a cam for engaging said rock-arm, a suitably-journaled ratchet-Wheel, a pawl connected with said main shaft and serving to actuate said ratchet-Wheel, a latch for holding said rock-arm normally lifted, means carried by the ratchet-wheel for intermittently moving said latch, and a pawl engaging raid ratchet-Wheel and serving to prevent retraction thereof, substantially as and for the purpose set forth.

In a device of the character described, the combination with suitable spouts of a deflector, a shaft carrying said defiector, a rockarm xed to said shaft and provided with a latch-engaging extension, a spring-held latch engaging said extension, said latch and extension being provided with suitably shaped shoulders whereby said rock arm may be lifted when said latch is forced inwardly by its spring, a main shaft provided with a cam for actuating said rock-arm, a rotating latchactuating member, and connecting means between said main shaft and said rotating member, whereby the latter is moved to intermittently actuate the latch, substantially as and for the purpose set forth.

7. In a device of the character described, the combination with s'uitable chutes of a deflector, a shaft carrying said deflector, a rockarm fixed to said shaft, a main shaft, a cam carried by said shaft for actuating said rockarm, a ratchet-Wheel, means connected with the main shaft for actuating` said ratchetwheel, an extension h2 for said rock-arm, a latch k engaging said extension, a spring bearing against said latch, studs carried by said ratchet-wheel for engaging said latch,

and a pawl engaging said ratchet-Wheel and preventing retraction thereof, substantially as and for the purpose set forth.

S. In a device of the character described, the combination with suitable chutes of a deflector, a shaft carrying said deflector, a rockarm fixed to said shaft, a main shaft provided With a cam for actuating said rock-arm, a latch for holding said roclearm normally elevated, a rotating wheel, adjustably-secured studs carried by said Wheel for engaging said latch, and means for moving said ratchet- Wheel to cause said studs to intermittently actuate said latch, substantially as and for the purpose lset forth.

9. In a device of the character described, the combination with suitable chutes, a deflector, a rock-shaft carrying said deiiector, a rock-arm fixed to said rock-shaft, a latch serving to hold said rock-arm normally elevated, a journaled ratchet-Wheel, afixed arm frictionally engaging said ratchet-wheel, a main shaft provided with a cam for engaging said rock-arm, a pawl connected with said main shaft and engaging said ratchet-wheel, and means carried by said ratchet-wheel for intermittently actuating said latch, substantially as and for the purpose set forth.

l0. In a device of the character described, the combination with suitable chutes and a defiector, of a rock-shaft carrying said deiiector, a frame member Cthroughwhich said rock-shaft extends, a main shaft extending through said frame member, a journaled ratchet-wheel supported by said frame member, a pawl connected with the main shaft and engaging said ratchet-Wheel, a rock-arm fixed to said rock-shaft, a cam on the main shaft for actuating said rock-arm, a latch serving to hold said rock-arm normally elevated, and means carried by said ratchet-Wheel for intermittently actuating said latch, substantially as and for the purpose set forth.

ll. In a sampler having main and sample branch chutes provided at their upper portions With curved lateral internal flanges formed with flange-receiving grooves, a deflector vibrating about an axis at its lower end and provided with vertical end flanges projecting upwardly into said grooves and coacting with the flanges of said chute, and a supply-chute above said deflector.

l2. In a sampler, branch chutes B4 B5 joined at their upperends and provided with lateral internal curved flanges r', a deflector vibrating about an axis at its lower end and provided with flanges o" which work between the flanges r and the lateral Walls of the branch chutes, and asupplychute above said deilector.

GUSTAVE A. OVERSTROM. In presence of- CHARLES B. FALoR, C. M. SAWYER.

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